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2015-05-27perf: Fix race in BPF program unregisterAlexei Starovoitov1-1/+2
there is a race between perf_event_free_bpf_prog() and free_trace_kprobe(): __free_event() event->destroy(event) tp_perf_event_destroy() perf_trace_destroy() perf_trace_event_unreg() which is dropping event->tp_event->perf_refcount and allows to proceed in: unregister_trace_kprobe() unregister_kprobe_event() trace_remove_event_call() probe_remove_event_call() free_trace_kprobe() while __free_event does: call_rcu(&event->rcu_head, free_event_rcu); free_event_rcu() perf_event_free_bpf_prog() To fix the race simply move perf_event_free_bpf_prog() before event->destroy(), since event->tp_event is still valid at that point. Note, perf_trace_destroy() is not racing with trace_remove_event_call() since they both grab event_mutex. Reported-by: Wang Nan <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Cc: [email protected] Fixes: 2541517c32be ("tracing, perf: Implement BPF programs attached to kprobes") Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2015-05-27ALSA: hda - Set stream_pm ops automatically by generic parserTakashi Iwai4-4/+4
This allows user to test power_save_node feature via sysfs or patch firmware even on the codecs that don't specify it. It'll also save a few lines. Signed-off-by: Takashi Iwai <[email protected]>
2015-05-27net: netxen: correct sysfs bin attribute return codeVladimir Zapolskiy1-3/+3
If read() syscall requests unexpected number of bytes from "dimm" binary attribute file, return EINVAL instead of EPERM. At the same time pin down sysfs file size to the fixed sizeof(struct netxen_dimm_cfg), which allows to exploit some missing sanity checks from kernfs (file boundary checks vs offset etc.) Signed-off-by: Vladimir Zapolskiy <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-05-27tools: bpf_jit_disasm: fix segfault on disabled debugging log outputDaniel Borkmann1-0/+2
With recent debugging, I noticed that bpf_jit_disasm segfaults when there's no debugging output from the JIT compiler to the kernel log. Reason is that when regexec(3) doesn't match on anything, start/end offsets are not being filled out and contain some uninitialized garbage from stack. Thus, we need zero out offsets first. Signed-off-by: Daniel Borkmann <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-05-26unix/caif: sk_socket can disappear when state is unlockedMark Salyzyn2-0/+16
got a rare NULL pointer dereference in clear_bit Signed-off-by: Mark Salyzyn <[email protected]> Acked-by: Hannes Frederic Sowa <[email protected]> ---- v2: switch to sock_flag(sk, SOCK_DEAD) and added net/caif/caif_socket.c v3: return -ECONNRESET in upstream caller of wait function for SOCK_DEAD Signed-off-by: David S. Miller <[email protected]>
2015-05-26drivers: of/base: move of_init to driver_initSudeep Holla3-5/+11
Commit 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from devices with an OF node") adds the symlink `of_node` for each device pointing to it's device tree node while creating/initialising it. However the devicetree sysfs is created and setup in of_init which is executed at core_initcall level. For all the devices created before of_init, the following error is thrown: "Error -2(-ENOENT) creating of_node link" Like many other components in driver model, initialize the sysfs support for OF/devicetree from driver_init so that it's ready before any devices are created. Fixes: 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from devices with an OF node") Suggested-by: Rob Herring <[email protected]> Cc: Grant Likely <[email protected]> Cc: Pawel Moll <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Signed-off-by: Sudeep Holla <[email protected]> Tested-by: Robert Schwebel <[email protected]> Acked-by: Rob Herring <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2015-05-26Merge tag 'fixes-for-v4.1-rc5' of ↵Greg Kroah-Hartman11-37/+68
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus Felipe writes: usb: fixes for v4.1-rc5 A few late important fixes which have been pending on mailing list due to my vacations. The important fixes are a fix for DEPCMD and DGCMD status bitfields on DWC3, a couple fixes for Renesas USB Controller, one of which prevents a broken DT binding from reaching v4.1-final, and an old fix for s3c2410-udc where pullup logic was reversed. Signed-off-by: Felipe Balbi <[email protected]>
2015-05-26drm/radeon: don't share plls if monitors differ in audio supportAlex Deucher1-1/+3
Enabling audio may enable different pll dividers. Don't share plls if the monitors differ in audio support. bug: https://bugzilla.kernel.org/show_bug.cgi?id=98751 Signed-off-by: Alex Deucher <[email protected]> Cc: [email protected]
2015-05-26hwmon: (ntc_thermistor) Ensure iio channel is of type IIO_VOLTAGEChris Lesiak1-0/+9
When configured via device tree, the associated iio device needs to be measuring voltage for the conversion to resistance to be correct. Return -EINVAL if that is not the case. Signed-off-by: Chris Lesiak <[email protected]> Cc: [email protected] # 3.10+ Signed-off-by: Guenter Roeck <[email protected]>
2015-05-26amd-xgbe-phy: Fix initial mode when autoneg is disabledLendacky, Thomas1-3/+42
When the ethtool command is used to set the speed of the device while the device is down, the check to set the initial mode may fail when the device is brought up, causing failure to bring the device up. Update the code to set the initial mode based on the desired speed if auto-negotiation is disabled. This patch fixes a bug introduced by: d9663c8c2149 ("amd-xgbe-phy: Use phydev advertising field vs supported") Signed-off-by: Tom Lendacky <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-05-26Merge tag 'mac80211-for-davem-2015-05-26' of ↵David S. Miller7-65/+100
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 Johannes Berg says: ==================== We have three more fixes: * AP_VLAN tailroom calculation fix, the bug leads to warnings along with dropped packets * NAPI context issue, calling napi_gro_receive() from a timer (obviously) can lead to crashes * remain-on-channel combining leads to dropped requests and not being able to finish certain operations, so remove it ==================== Signed-off-by: David S. Miller <[email protected]>
2015-05-26alpha: kernel: osf_sys: Set 'kts.tv_nsec' only when 'tv' has effectChen Gang1-2/+1
The related warning: CC init/do_mounts.o arch/alpha/kernel/osf_sys.c: In function 'SyS_osf_settimeofday': arch/alpha/kernel/osf_sys.c:1028:14: warning: 'kts.tv_nsec' may be used uninitialized in this function [-Wmaybe-uninitialized] kts.tv_nsec *= 1000; ^ arch/alpha/kernel/osf_sys.c:1016:18: note: 'kts' was declared here struct timespec kts; ^ Signed-off-by: Chen Gang <[email protected]> Signed-off-by: Matt Turner <[email protected]>
2015-05-26alpha: Wire up all missing implemented syscallsChen Gang3-1/+7
And still left the missing unimplemented syscalls as warnings. The related warnings for missing implemented syscalls: CALL scripts/checksyscalls.sh <stdin>:1241:2: warning: #warning syscall getrandom not implemented [-Wcpp] <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] <stdin>:1250:2: warning: #warning syscall execveat not implemented [-Wcpp] Signed-off-by: Chen Gang <[email protected]> Signed-off-by: Matt Turner <[email protected]>
2015-05-26alpha: Fix bootpfile and bootpzfile make targetsHelge Deller4-7/+319
Fix the bootpfile and bootpzfile make targets to creat BOOTP images. Both targets were broken due to some missing defines to re-map ELF constants. In addition the old code used the generic vsprintf function of the kernel which we now replace by a simple and much smaller implementation for the bootloader. Signed-off-by: Helge Deller <[email protected]> Signed-off-by: Matt Turner <[email protected]>
2015-05-26alpha: copy_thread(): rename 'arg' argument to 'kthread_arg'Alex Dowad1-4/+3
The 'arg' argument to copy_thread() is only ever used when forking a new kernel thread. Hence, rename it to 'kthread_arg' for clarity (and consistency with do_fork() and other arch-specific implementations of copy_thread()). Signed-off-by: Alex Dowad <[email protected]> Signed-off-by: Matt Turner <[email protected]>
2015-05-26alpha: delete non-required instances of <linux/init.h>Paul Gortmaker7-7/+0
None of these files are actually using any __init type directives and hence don't need to include <linux/init.h>. Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Acked-by: Richard Henderson <[email protected]> Cc: Ivan Kokshaysky <[email protected]> Cc: Matt Turner <[email protected]> Cc: [email protected] Signed-off-by: Paul Gortmaker <[email protected]> Signed-off-by: Matt Turner <[email protected]>
2015-05-26alpha: don't use module_init for non-modular core codePaul Gortmaker1-2/+1
The srm console is always built in. It will never be modular, so using module_init as an alias for __initcall is rather misleading. Fix this up now, so that we can relocate module_init from init.h into module.h in the future. If we don't do this, we'd have to add module.h to obviously non-modular code, and that would be a worse thing. Direct use of __initcall is discouraged, vs prioritized ones. Use of device_initcall is consistent with what __initcall maps onto, and hence does not change the init order, making the impact of this change zero. Should someone with real hardware for boot testing want to change it later to arch_initcall or console_initcall, they can do that at a later date. Reviewed-by: Richard Henderson <[email protected]> Cc: Ivan Kokshaysky <[email protected]> Acked-by: Matt Turner <[email protected]> Cc: [email protected] Signed-off-by: Paul Gortmaker <[email protected]> Signed-off-by: Matt Turner <[email protected]>
2015-05-26smp, alpha: kill SMP single function call interruptJiang Liu1-7/+1
Commit 9a46ad6d6df3b54 "smp: make smp_call_function_many() use logic similar to smp_call_function_single()" has unified the way to handle single and multiple cross-CPU function calls. Now only one interrupt is needed for architecture specific code to support generic SMP function call interfaces, so kill the redundant single function call interrupt. Cc: Andrew Morton <[email protected]> Cc: Shaohua Li <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: Jiri Kosina <[email protected]> Cc: Richard Henderson <[email protected]> Cc: Ivan Kokshaysky <[email protected]> Acked-by: Matt Turner <[email protected]> Cc: [email protected] Signed-off-by: Jiang Liu <[email protected]> Signed-off-by: Matt Turner <[email protected]>
2015-05-26alpha: Remove #include <uapi/asm/types.h> from <asm/types.h>Geert Uytterhoeven1-1/+0
Everything in arch/alpha/include/uapi/asm/types.h is protected by "#ifndef __KERNEL__", so it's unused for kernelspace. Signed-off-by: Geert Uytterhoeven <[email protected]> Cc: Richard Henderson <[email protected]> Cc: Ivan Kokshaysky <[email protected]> Acked-by: Matt Turner <[email protected]> Cc: [email protected] Signed-off-by: Matt Turner <[email protected]>
2015-05-26alpha: clean up unnecessary MSI/MSI-X capability findYijing Wang1-1/+1
PCI core will initialize device MSI/MSI-X capability in pci_msi_init_pci_dev(). So device driver should use pci_dev->msi_cap/msix_cap to determine whether the device support MSI/MSI-X instead of using pci_find_capability(pci_dev, PCI_CAP_ID_MSI/MSIX). Access to PCIe device config space again will consume more time. Signed-off-by: Yijing Wang <[email protected]> Cc: Richard Henderson <[email protected]> Cc: Ivan Kokshaysky <[email protected]> Acked-by: Matt Turner <[email protected]> Cc: Phil Carmody <[email protected]> Cc: [email protected] Signed-off-by: Matt Turner <[email protected]>
2015-05-26usb: renesas_usbhs: Don't disable the pipe if Control write status stageYoshihiro Shimoda1-1/+8
This patch fixes an issue that sometimes this controller is not able to complete the Control write status stage. This driver should enable DCPCTR.CCPL and PID_BUF to complete the status stage. However, if this driver detects the ctrl_stage interruption first before the control write data is received, this driver will clear the PID_BUF wrongly in the usbhsf_pio_try_pop(). To avoid this issue, this patch doesn't clear the PID_BUF in the usbhsf_pio_try_pop(). (Since also the privious code doesn't disable the PID_BUF after a control transfer was finished, this patch doesn't have any side efforts.) Signed-off-by: Yoshihiro Shimoda <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2015-05-26usb: renesas_usbhs: Fix fifo unclear in usbhsf_prepare_popKazuya Mizuguchi1-0/+5
This patch fixes an issue for control write. When usbhsf_prepare_pop() is called after this driver called a gadget setup function, this controller doesn't receive the control write data. So, this patch adds a code to clear the fifo for control write in usbhsf_prepare_pop(). Signed-off-by: Kazuya Mizuguchi <[email protected]> Signed-off-by: Yoshihiro Shimoda <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2015-05-26usb: gadget: f_fs: fix check in read operationRui Miguel Silva1-1/+1
when copying to iter the size can be different then the iov count, the check for full iov is wrong and make any read on request which is not the exactly size of iov to return -EFAULT. So, just check the success of the copy. Signed-off-by: Rui Miguel Silva <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2015-05-26usb: musb: fix order of conditions for assigning end point operationsBen Hutchings1-7/+7
Currently we always assign one of the two common implementations of ep_offset and ep_select operations, overwriting any platform-specific implementations. Fixes: d026e9c76aac ("usb: musb: Change end point selection to use ...") Signed-off-by: Ben Hutchings <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2015-05-26usb: gadget: f_uac1: check return code from config_ep_by_speedMichael Trimarchi1-1/+4
Not checking config_ep_by_speed could lead to a kernel NULL pointer dereference error in usb_ep_enable Cc: Felipe Balbi <[email protected]> Signed-off-by: Michael Trimarchi <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2015-05-26usb: gadget: ffs: fix: Always call ffs_closed() in ffs_data_clear()Krzysztof Opasiak1-5/+8
Originally FFS_FL_CALL_CLOSED_CALLBACK flag has been used to indicate if we should call ffs_closed_callback(). Commit 4b187fceec3c ("usb: gadget: FunctionFS: add devices management code") changed its semantic to indicate if we should call ffs_closed() function which does a little bit more. This situation leads to: [ 122.362269] ------------[ cut here ]------------ [ 122.362287] WARNING: CPU: 2 PID: 2384 at drivers/usb/gadget/function/f_fs.c:3417 ffs_ep0_write+0x730/0x810 [usb_f_fs]() [ 122.362292] Modules linked in: [ 122.362555] CPU: 2 PID: 2384 Comm: adbd Tainted: G W 4.1.0-0.rc4.git0.1.1.fc22.i686 #1 [ 122.362561] Hardware name: To be filled by O.E.M. To be filled by O.E.M./Aptio CRB, BIOS 5.6.5 07/25/2014 [ 122.362567] c0d1f947 415badfa 00000000 d1029e64 c0a86e54 00000000 d1029e94 c045b937 [ 122.362584] c0c37f94 00000002 00000950 f9b313d4 00000d59 f9b2ebf0 f9b2ebf0 fffffff0 [ 122.362600] 00000003 deb53d00 d1029ea4 c045ba42 00000009 00000000 d1029f08 f9b2ebf0 [ 122.362617] Call Trace: [ 122.362633] [<c0a86e54>] dump_stack+0x41/0x52 [ 122.362645] [<c045b937>] warn_slowpath_common+0x87/0xc0 [ 122.362658] [<f9b2ebf0>] ? ffs_ep0_write+0x730/0x810 [usb_f_fs] [ 122.362668] [<f9b2ebf0>] ? ffs_ep0_write+0x730/0x810 [usb_f_fs] [ 122.362678] [<c045ba42>] warn_slowpath_null+0x22/0x30 [ 122.362689] [<f9b2ebf0>] ffs_ep0_write+0x730/0x810 [usb_f_fs] [ 122.362702] [<f9b2e4c0>] ? ffs_ep0_read+0x380/0x380 [usb_f_fs] [ 122.362712] [<c05a1c1f>] __vfs_write+0x2f/0x100 [ 122.362722] [<c05a42f2>] ? __sb_start_write+0x52/0x110 [ 122.362731] [<c05a2534>] vfs_write+0x94/0x1b0 [ 122.362740] [<c0a8a1c0>] ? mutex_lock+0x10/0x30 [ 122.362749] [<c05a2f41>] SyS_write+0x51/0xb0 [ 122.362759] [<c0a8c71f>] sysenter_do_call+0x12/0x12 [ 122.362766] ---[ end trace 0673d3467cecf8db ]--- in some cases (reproduction path below). This commit get back semantic of that flag and ensures that ffs_closed() is called always when needed but ffs_closed_callback() is called only if this flag is set. Reproduction path: Compile kernel without any UDC driver or bound some gadget to existing one and then: $ modprobe g_ffs $ mount none -t functionfs mount_point $ ffs-example mount_point This will fail with -ENODEV as there is no udc. $ ffs-example mount_point This will fail with -EBUSY because ffs_data has not been properly cleaned up. Signed-off-by: Krzysztof Opasiak <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2015-05-26usb: gadget: g_ffs: Fix counting of missing_functionsKrzysztof Opasiak1-1/+3
Returning non-zero value from ready callback makes ffs instance return error from writing strings and enter FFS_CLOSING state. This means that this this function is not truly ready and close callback will not be called. This commit fix ffs_ready_callback() to undo all side effects of this function in case of error. Signed-off-by: Krzysztof Opasiak <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2015-05-26usb: s3c2410_udc: correct reversed pullup logicSergiy Kibrik1-1/+1
For some reason the code has always been disabling pullup when asked to do the opposite. According to surrounding code and gadget API this seems to be a mistake. This fix allows UDC to be detected by host controller on recent kernels. Signed-off-by: Sergiy Kibrik <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2015-05-26MIPS: Fuloong 2E: Replace CONFIG_USB_ISP1760_HCD by CONFIG_USB_ISP1760Geert Uytterhoeven1-1/+1
Since commit 100832abf065bc18 ("usb: isp1760: Make HCD support optional"), CONFIG_USB_ISP1760_HCD is automatically selected when needed. Enabling that option in the defconfig is now a no-op, and no longer enables ISP1760 HCD support. Re-enable the ISP1760 driver in the defconfig by enabling USB_ISP1760_HOST_ROLE instead. Signed-off-by: Geert Uytterhoeven <[email protected]> Cc: Laurent Pinchart <[email protected]> Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/10180/ Signed-off-by: Ralf Baechle <[email protected]>
2015-05-26MIPS: irq: Use DECLARE_BITMAPJoe Perches1-1/+1
Use the generic mechanism to declare a bitmap instead of unsigned long. This could fix an overwrite defect of whatever follows irq_map. Not all "#define NR_IRQS <value>" are a multiple of BITS_PER_LONG so using DECLARE_BITMAP allocates the proper number of longs required for the possible bits. For instance: arch/mips/include/asm/mach-ath79/irq.h:#define NR_IRQS 51 arch/mips/include/asm/mach-db1x00/irq.h:#define NR_IRQS 152 arch/mips/include/asm/mach-lantiq/falcon/irq.h:#define NR_IRQS 328 Signed-off-by: Joe Perches <[email protected]> Cc: linux-mips <[email protected]> Cc: LKML <[email protected]> Cc: Gabor Juhos <[email protected]> Cc: Manuel Lauss <[email protected]> Cc: John Crispin <[email protected]> Patchwork: https://patchwork.linux-mips.org/patch/10091/ Signed-off-by: Ralf Baechle <[email protected]>
2015-05-26ttyFDC: Fix to use native endian MMIO readsJames Hogan1-8/+9
The MIPS Common Device Memory Map (CDMM) is internal to the core and has native endianness. There is therefore no need to byte swap the accesses on big endian targets, so convert the Fast Debug Channel (FDC) TTY driver to use __raw_readl()/__raw_writel() rather than ioread32()/iowrite32(). Fixes: 4cebec609aea ("TTY: Add MIPS EJTAG Fast Debug Channel TTY driver") Fixes: c2d7ef51d731 ("ttyFDC: Implement KGDB IO operations.") Signed-off-by: James Hogan <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: Jiri Slaby <[email protected]> Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/9905/ Acked-by: Greg Kroah-Hartman <[email protected]> Signed-off-by: Ralf Baechle <[email protected]>
2015-05-26MIPS: Fix CDMM to use native endian MMIO readsJames Hogan1-2/+2
The MIPS Common Device Memory Map (CDMM) is internal to the core and has native endianness. There is therefore no need to byte swap the accesses on big endian targets, so convert the CDMM bus driver to use __raw_readl() rather than readl(). Fixes: 8286ae03308c ("MIPS: Add CDMM bus support") Signed-off-by: James Hogan <[email protected]> Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/9904/ Signed-off-by: Ralf Baechle <[email protected]>
2015-05-26usb: dwc3: gadget: Fix incorrect DEPCMD and DGCMD status macrosSubbaraya Sundeep Bhatta1-2/+2
Fixed the incorrect macro definitions correctly as per databook. Signed-off-by: Subbaraya Sundeep Bhatta <[email protected]> Fixes: b09bb64239c8 (usb: dwc3: gadget: implement Global Command support) Cc: <[email protected]> #v3.5+ Signed-off-by: Felipe Balbi <[email protected]>
2015-05-26usb: phy: tahvo: Pass the IRQF_ONESHOT flagFabio Estevam1-1/+2
Since commit 1c6c69525b40 ("genirq: Reject bogus threaded irq requests") threaded IRQs without a primary handler need to be requested with IRQF_ONESHOT, otherwise the request will fail. So pass the IRQF_ONESHOT flag in this case. The semantic patch that makes this change is available in scripts/coccinelle/misc/irqf_oneshot.cocci. Signed-off-by: Fabio Estevam <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2015-05-26usb: phy: ab8500-usb: Pass the IRQF_ONESHOT flagFabio Estevam1-3/+3
Since commit 1c6c69525b40 ("genirq: Reject bogus threaded irq requests") threaded IRQs without a primary handler need to be requested with IRQF_ONESHOT, otherwise the request will fail. So pass the IRQF_ONESHOT flag in this case. The semantic patch that makes this change is available in scripts/coccinelle/misc/irqf_oneshot.cocci. Signed-off-by: Fabio Estevam <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2015-05-26usb: renesas_usbhs: Revise the binding document about the dma-namesYoshihiro Shimoda2-13/+17
Since the DT should describe the hardware (not the driver limitation), This patch revises the binding document about the dma-names to change simple numbering as "ch%d" instead of "tx<n>" and "rx<n>". Also this patch fixes the actual code of renesas_usbhs driver to handle the new dma-names. Signed-off-by: Yoshihiro Shimoda <[email protected]> Acked-by: Mark Rutland <[email protected]> Acked-by: Geert Uytterhoeven <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2015-05-26dm: run queue on re-queueJunichi Nomura1-0/+1
Without kicking queue, requeued request may stay forever in the queue if there are no other I/O activities to the device. The original error had been in v2.6.39 with commit 7eaceaccab5f ("block: remove per-queue plugging"), which replaced conditional plugging by periodic runqueue. Commit 9d1deb83d489 in v4.1-rc1 removed the periodic runqueue and the problem started to manifest. Fixes: 9d1deb83d489 ("dm: don't schedule delayed run of the queue if nothing to do") Signed-off-by: Jun'ichi Nomura <[email protected]> Signed-off-by: Mike Snitzer <[email protected]>
2015-05-26crypto: algif_aead - Disable AEAD user-space for nowHerbert Xu1-9/+0
The newly added AEAD user-space isn't quite ready for prime time just yet. In particular it is conflicting with the AEAD single SG list interface change so this patch disables it now. Once the SG list stuff is completely done we can then renable this interface. Signed-off-by: Herbert Xu <[email protected]>
2015-05-26backlight: pwm: Handle EPROBE_DEFER while requesting the PWMNicolas Ferre1-0/+4
When trying to request the PWM device with devm_pwm_get(), the EPROBE_DEFER flag is not handled properly. It can lead to the PWM not being found. Signed-off-by: Boris Brezillon <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]> Acked-by: Thierry Reding <[email protected]> Signed-off-by: Lee Jones <[email protected]>
2015-05-26ALSA: hda/realtek - Add ALC256 alias name for DellKailang Yang1-0/+1
Add ALC3246 for Dell platform. Signed-off-by: Kailang Yang <[email protected]> Signed-off-by: Takashi Iwai <[email protected]>
2015-05-26drm/vgem: drop DRIVER_PRIME (v2)Rob Clark4-116/+2
For actual sharing of buffers with other drivers (ie. actual hardware) we'll need to pimp things out a bit better to deal w/ caching, multiple memory domains, etc. See thread: http://lists.freedesktop.org/archives/dri-devel/2015-May/083160.html But for the llvmpipe use-case this isn't a problem. Nor do we really need prime/dri3 (dri2 is sufficient). So until the other issues are sorted lets remove DRIVER_PRIME. v2: also drop the dead code [airlied: Okay I'm convinced this API could have a lot of use cases that are really really bad, yes the upload use case is valid however that isn't the only use case enabled, and if we allow all the other use cases, people will start to (ab)use them, and then they'll be ABI and my life will get worse, so disable PRIME for now] Acked-by: Thomas Hellstrom <[email protected]> Acked-by: Daniel Vetter <[email protected]> Signed-off-by: Rob Clark <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
2015-05-25xtensa: Provide dummy dma_alloc_attrs() and dma_free_attrs()Guenter Roeck1-0/+13
xtensa:allmodconfig fails to build with the following errors. drivers/gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c: In function ‘gk20a_instobj_dtor_dma’: drivers/gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c:154:2: error: implicit declaration of function ‘dma_free_attrs’ drivers/gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c: In function ‘gk20a_instobj_ctor_dma’: drivers/gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c:218:2: error: implicit declaration of function ‘dma_alloc_attrs’ Xtensa does not provide those functions at this time. Provide dummy implementations to avoid build errors. Acked-by: Max Filippov <[email protected]> Signed-off-by: Guenter Roeck <[email protected]> Signed-off-by: Chris Zankel <[email protected]>
2015-05-25Merge branch 'phyter-bug-fixes'David S. Miller1-4/+19
Richard Cochran says: ==================== phyter bug fixes While working on a project using the phyter, I noticed some bugs that have crept in over time. This series fixes those bugs. These patches are also meant for stable. ==================== Signed-off-by: David S. Miller <[email protected]>
2015-05-25net: dp83640: fix improper double spin locking.Richard Cochran1-2/+2
A pair of nested spin locks was introduced in commit 63502b8d0 "dp83640: Fix receive timestamp race condition". Unfortunately the 'flags' parameter was reused for the inner lock, clobbering the originally saved IRQ state. This patch fixes the issue by changing the inner lock to plain spin_lock without irqsave. Signed-off-by: Richard Cochran <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-05-25net: dp83640: reinforce locking rules.Richard Cochran1-1/+16
Callers of the ext_write function are supposed to hold a mutex that protects the state of the dialed page, but one caller was missing the lock from the very start, and over time the code has been changed without following the rule. This patch cleans up the call sites in violation of the rule. Signed-off-by: Richard Cochran <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-05-25net: dp83640: fix broken calibration routine.Richard Cochran1-1/+1
Currently, the calibration function that corrects the initial offsets among multiple devices only works the first time. If the function is called more than once, the calibration fails and bogus offsets will be programmed into the devices. In a well hidden spot, the device documentation tells that trigger indexes 0 and 1 are special in allowing the TRIG_IF_LATE flag to actually work. This patch fixes the issue by using one of the special triggers during the recalibration method. Signed-off-by: Richard Cochran <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-05-25Merge tag 'pinctrl-v4.1-4' of ↵Linus Torvalds4-4/+50
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control fixes from Linus Walleij: "Here are some three pin control fixes for the v4.1 cycle, all driver-specific. Business as usual and calm as it should be in this portion of the merge window. - IRQ trigger fix for the Intel Cherryview - GPIO-to-pin mapping fix for the Cygnus driver - GPIO-to-pin mapping fix for the Meson8b driver" * tag 'pinctrl-v4.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: Fix gpio/pin mapping for Meson8b pinctrl: cygnus: fixed incorrect GPIO-pin mapping pinctrl: cherryview: Read triggering type from HW if not set when requested
2015-05-25Merge tag 'gpio-v4.1-3' of ↵Linus Torvalds2-5/+7
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO fixes from Linus Walleij: "Here are two GPIO fixes targeted for stable: - a leak in gpiochip_add path destined for stable - a kempld driver bug destined for stable" * tag 'gpio-v4.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpio: gpio-kempld: Fix get_direction return value gpio: fix gpio leak in gpiochip_add error path
2015-05-25net: stmmac: create one debugfs dir per net-deviceMathieu Olivari2-23/+59
stmmac DebugFS entries are currently global to the driver. As a result, having more than one stmmac device in the system creates the following error: * ERROR stmmaceth, debugfs create directory failed * stmmac_hw_setup: failed debugFS registration This also results in being able to access the debugfs information for the first registered device only. This patch changes the debugfs structure to have one sub-directory per net-device. Files under "/sys/kernel/debug/stmmaceth" will now show-up under /sys/kernel/debug/stmmaceth/ethN/. Signed-off-by: Mathieu Olivari <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-05-25net/ibm/emac: fix size of emac dump memory areasIvan Mikhaylov2-15/+8
Fix in send of emac regs dump to ethtool which causing in wrong data interpretation on ethtool layer for MII and EMAC. Signed-off-by: Ivan Mikhaylov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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